Sync public subset from Flux (private)

include/numerics/max.h

@@ -0,0 +1,76 @@
+#pragma once
+
+
+#include "./utils/vector.h"
+#include "./utils/matrix.h"
+
+
+namespace numerics{
+	
+	template <typename T>
+	T max(const T a, const T b){
+
+		if(a < b){
+			return b;
+		}else{
+			return a;
+		}
+	}
+
+	template <typename T>
+	void inplace_max(utils::Matrix<T>& A, const T b){
+
+		const uint64_t rows = A.rows();
+		const uint64_t cols = A.cols();
+
+		for (uint64_t i = 0; i < rows; ++i){
+			for (uint64_t j = 0; j < cols; ++j){
+
+				if (b > A(i,j)){
+					//std::cout << A(i,j) << std::endl;
+					A(i,j) = b;
+					//std::cout << A(i,j) << std::endl;
+				}
+			}
+		}
+	}
+
+	template <typename T>
+	utils::Matrix<T> max(const utils::Matrix<T>& A, const T b){
+
+		utils::Matrix<T> B = A;
+		inplace_max(B, b);
+		return B;
+	}
+
+	template <typename T>
+	utils::Vector<T> max(const utils::Matrix<T>& A, std::string method){
+
+		utils::Vector<T> b;
+
+		if (method == "cols"){
+			b.resize(A.cols(), T{0});
+			for (uint64_t i = 0; i < A.cols(); ++i){
+				for (uint64_t j = 0; j < A.rows(); ++j){
+					b[i] = max(A(j, i), b[i]);
+				}
+			}
+		}else if (method == "rows"){
+			b.resize(A.rows(), T{0});
+			for (uint64_t i = 0; i < A.rows(); ++i){
+				for (uint64_t j = 0; j < A.cols(); ++j){
+					//std::cout << i << ":" << j << std::endl;
+					b[i] = max(A(i, j), b[i]);
+				}
+			}
+		}else{
+			throw std::runtime_error("max: choose 'rows or 'cols'");
+		}
+		return b;
+
+	}
+
+
+
+} // namespace numerics
+